What does the term "keloid" refer to in the context of healing?

The term "keloid" refers to a type of abnormal scar that can form as a result of the healing process. Keloids are characterized by an excessive proliferation of collagen at the site of injury, which leads to a raised scar that extends beyond the original wound boundaries. This overgrowth is what distinguishes keloids from hypertrophic scars, which are also raised but do not extend beyond the edges of the original wound.

When discussing keloids specifically, it is important to note their appearance and behavior. They are often firmer and may have a shiny or rubbery texture, and they can continue to grow over time. This is in contrast to normal scars, which typically flatten out and mature within a few months. The healing process that leads to the formation of keloids involves genetic, molecular, and environmental factors that stimulate collagen synthesis excessively.

Understanding the definition of a keloid is important in the context of wound healing and scar management, as this knowledge can influence treatment options for patients who are prone to developing keloids after skin injuries or surgeries.